Building Materials First class timber has an average life of 1 to 5 years 5 to 10 years More than 10 years Less than one year 1 to 5 years 5 to 10 years More than 10 years Less than one year ANSWER DOWNLOAD EXAMIANS APP
Building Materials Spirit varnish generally consists of Spirit and shellac Alcohol, wax and turpentine Oil, wax and resin Pigment and synthetic resin Spirit and shellac Alcohol, wax and turpentine Oil, wax and resin Pigment and synthetic resin ANSWER DOWNLOAD EXAMIANS APP
Building Materials When a brick is immersed in water for 24 hours and then dried, if 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence No grey or white deposits appear on the surface, the brick is free from soluble salts All listed here 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence ANSWER DOWNLOAD EXAMIANS APP
Building Materials For melting one tonne of cast iron One quintal coke is required All listed here 700 m3 air is required 20 kg limestone is required One quintal coke is required All listed here 700 m3 air is required 20 kg limestone is required ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite Only (iii) Both (ii) and (iii) All (i), (ii) and (iii) Both (i) and (iii) Only (iii) Both (ii) and (iii) All (i), (ii) and (iii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Gypsum consists of CaSO4 and H₂O CO₂ and calcium H₂S and CO₂ Lime and H₂O CaSO4 and H₂O CO₂ and calcium H₂S and CO₂ Lime and H₂O ANSWER DOWNLOAD EXAMIANS APP
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